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INSTRUCTIONS: Complete the sentence with the correct form of the verb in parentheses.Ex:She __________ (like) pizza. She likes pizza. We ____________________ (work) every day after school.

INSTRUCTIONS: Complete the sentence with the correct form of the verb in parentheses.Ex:She __________ (like) pizza. She likes pizza. The teacher ____________________ (go) home at 7:00.

Draw the Lewis structure for SO₂ (by following the octet rule on all atoms) and then determine the number of nonbonding electron pairs on the central atom.

A neutral argon atom has          valence electrons.

The acetate ion has              valence electrons.

How many liters of 0.[y] M K₃PO₄ solution are necessary to completely react with [x] mL of 0.[z] M NiCl₂ according to the balanced chemical reaction:2 K₃PO₄(aq) + 3 NiCl₂(aq) → Ni₃(PO₄)₂(s) + 6 KCl(aq)

COF₂ is a highly toxic compound that was used as a chemical weapon in World War I. Draw the Lewis structure of CF₂O and then answer the following questions. Is the molecule COF₂ polar? [yes_no] What intermolecular forces are present in a molecule of COF₂? [imf]

A neutral carbon atom has         valence electrons.

The nitrite ion has              valence electrons.

Which atom in the Br-F molecule has a partial positive charge (δ+)?